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QuestionChemistry

What is the empirical formula for a compound formed by fluorine and rubidium?
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Step 1:
I'll solve this step by step using proper LaTeX formatting:

Step 2:
: Determine the charges of the elements

- Rubidium (Rb) is in Group 1, so it has a charge of $$+1
- Fluorine (F) is in Group 17, so it has a charge of - 1

Step 3:
: Determine the ratio of ions to balance charges

- We need to find how many Rb⁺ and F⁻ ions are required to create a neutral compound - The goal is to have total positive and negative charges equal to zero

Step 4:
: Calculate the ratio

- Charge of Rb⁺: $$+1
- Charge of F⁻: - 1 - To balance, we need one Rb⁺ for each F⁻ - This means the ratio will be 1:1

Step 5:
: Write the empirical formula

- Rubidium: $$\text{Rb}_{1}
- Fluorine: \text{F}_{1}

Final Answer

The empirical formula for the compound formed by fluorine and rubidium is RbF.